ARE YOU STARTING TO GET IT, I DON'T WANT TO BE ON THIS
LIST!!!!!!!!!!!!!!!!!!!!!!

----- Original Message -----
From: Jason Wharton <jwharton@...>
To: <IBObjects@egroups.com>
Sent: Monday, November 27, 2000 10:03 AM
Subject: [IBO] Grid flicker


> Craig,
>
> I plan to address this problem. I think what is happening is it is
blanking
> out the row and then because records need to be fetched in it is doing it
> during the time the grid is painting. I am now making sure all rows are
> fetched prior to the paint cycle so this shouldn't be an issue any longer.
>
> I'll presume that you want on the v4 BETA so that you can be sure this is
> properly taken care of.
>
> Regards,
> Jason Wharton
> CPS - Mesa AZ
> http://www.ibobjects.com
>
>
> ----- Original Message -----
> From: "Craig L. Leonardi" <leonardicl@...>
> To: <IBObjects@egroups.com>
> Sent: Sunday, November 26, 2000 6:32 AM
> Subject: Re: [IBO] POLL: Who likes the partial row at the bottom of the
> TIB_Grid?
>
>
> > >
> > > In the process of essentially rewriting the TIB_Grid control, I am
> > realizing
> > > that now would be a good time to consider some additional behavioral
> > > changes...
> > >
> > Jason: I'd like to see you eliminate a grid repaint issue
> > that results in 'flicker' when scrolling to new (previously
> > unfetched) records. Here's an excerpt from a post
> > I sent about this some time ago.
> >
> > Thanks,
> >
> > Craig
> >
> > ==============================
> >
> > First: this does not occur if FetchAllRows is True.
> >
> > Second: the grid clear - grid repaint (flicker) shows
> > up when scrolling past the currently fetched records
> > and onto new ones (that presumably are fetched on
> > demand). To test this, you should use a dataset
> > with at least several hundred rows.
> >
> > The problem occurs with TIB_CustomGrid.Paint method.
> > Several feet down into this routine, you call
> >
> > Inherited Paint;
> >
> > I traced this routine back to TCustomGrid and the
> > trouble occurs in:
> >
> > TWinControl.PaintHandler;
> >
> > Specifically on the following line:
> >
> > if DC=0 then DC := BeginPaint(handle, PS);
> >
> > When scrolling past the end-of-the-grid display and
> > presumably, past the last record fetched, the code
> > will hit this point.
> >
> > BeginPaint(handle, PS) causes the grid to be cleared
> > under these conditions. Later on, the grid is repainted
> > but the result is the flicker that is seen when scrolling
> > down a long result set.
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>